Results 21 to 30 of about 14,865 (237)

Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulses

Nature Communications, 2023
Understanding the interaction of intense, femtosecond X-ray pulses with heavy atoms is crucial for gaining insights into the structure and dynamics of matter. One key aspect of nonlinear light–matter interaction was, so far, not studied systematically at
Aljoscha Rörig, Sang-Kil Son, Tommaso Mazza, Philipp Schmidt, Thomas M. Baumann, Benjamin Erk, Markus Ilchen, Joakim Laksman, Valerija Music, Shashank Pathak, Daniel E. Rivas, Daniel Rolles, Svitozar Serkez, Sergey Usenko, Robin Santra, Michael Meyer, Rebecca Boll   +16 more
doaj   +1 more source

Harmonic radiation contribution and X-ray transmission at the Small Quantum Systems instrument of European XFEL

Journal of Synchrotron Radiation, 2023
Transmission measurements of the soft X-ray beamline to the Small Quantum Systems (SQS) scientific instrument at the SASE3 undulator of European XFEL are presented.
Thomas M. Baumann, Rebecca Boll, Alberto De Fanis, Patrik Grychtol, Markus Ilchen, Ulf Fini Jastrow, Masahiro Kato, Christoph Lechner, Theophilos Maltezopoulos, Tommaso Mazza, Jacobo Montaño, Valerija Music, Yevheniy Ovcharenko, Nils Rennhack, Daniel E. Rivas, Norio Saito, Philipp Schmidt, Svitozar Serkez, Andrey Sorokin, Sergey Usenko, Jiawei Yan, Gianluca Geloni, Takahiro Tanaka, Kai Tiedtke, Michael Meyer   +24 more
doaj   +1 more source

3D printed devices and infrastructure for liquid sample delivery at the European XFEL

Journal of Synchrotron Radiation, 2022
The Sample Environment and Characterization (SEC) group of the European X-ray Free-Electron Laser (EuXFEL) develops sample delivery systems for the various scientific instruments, including systems for the injection of liquid samples that enable serial ...
Mohammad Vakili, Johan Bielecki, Juraj Knoška, Florian Otte, Huijong Han, Marco Kloos, Robin Schubert, Elisa Delmas, Grant Mills, Raphael de Wijn, Romain Letrun, Simon Dold, Richard Bean, Adam Round, Yoonhee Kim, Frederico A. Lima, Katerina Dörner, Joana Valerio, Michael Heymann, Adrian P. Mancuso, Joachim Schulz   +20 more
doaj   +1 more source

A phenomenological model of the X-ray pulse statistics of a high-repetition-rate X-ray free-electron laser

IUCrJ, 2023
Many coherent imaging applications that utilize ultrafast X-ray free-electron laser (XFEL) radiation pulses are highly sensitive to fluctuations in the shot-to-shot statistical properties of the source.
Trey W. Guest, Richard Bean, Raimund Kammering, Grant van Riessen, Adrian P. Mancuso, Brian Abbey   +5 more
doaj   +1 more source

Terawatt-scale sub-10-fs laser technology - key to generation of GW-level attosecond pulses in X-ray free electron laser [PDF]

, 2004
We propose a technique for the production of attosecond X-ray pulses which is based on the use of X-ray SASE FEL combined with a femtosecond laser system. A few-cycle optical pulse from a Ti:sapphire laser interacts with the electron beam in a two-period
Ayvazyan, Ayvazyan, Baltushka, Brabec, E.A. Schneidmiller, E.L. Saldin, Emma, Hentchel, M.V. Yurkov, Paul, Reiche, Saldin, Saldin, Saldin, Saldin, Saldin, Saldin, Schroeder, Wabnitz, Yu   +19 more
core   +1 more source

Towards the spatial resolution of metalloprotein charge states by detailed modeling of XFEL crystallographic diffraction. [PDF]

, 2020
Oxidation states of individual metal atoms within a metalloprotein can be assigned by examining X-ray absorption edges, which shift to higher energy for progressively more positive valence numbers.
Holton, James M, Kern, Jan, Sauter, Nicholas K, Yano, Junko   +3 more
core   +2 more sources

Polarization operator approach to electron-positron pair production in combined laser and Coulomb fields [PDF]

, 2006
The optical theorem is applied to the process of electron-positron pair creation in the superposition of a nuclear Coulomb and a strong laser field. We derive new representations for the total production rate as two-fold integrals, both for circular ...
Hatsagortsyan, K. Z., Jentschura, U. D., Keitel, C. H., Milstein, A. I., Müller, C.   +4 more
core   +3 more sources

Direct and secondary nuclear excitation with x-ray free-electron lasers [PDF]

, 2015
The direct and secondary nuclear excitation produced by an x-ray free electron laser when interacting with a solid-state nuclear target is investigated theoretically.
Gunst, J., Keitel, C., Kumar, N., Pálffy, A., Wu, Y., Wu, Y.   +5 more
core   +3 more sources

Photon Beam Transport and Scientific Instruments at the European XFEL

Applied Sciences, 2017
European XFEL is a free-electron laser (FEL) user facility providing soft and hard X-ray FEL radiation to initially six scientific instruments. Starting user operation in fall 2017 European XFEL will provide new research opportunities to users from ...
Thomas Tschentscher, Christian Bressler, Jan Grünert, Anders Madsen, Adrian P. Mancuso, Michael Meyer, Andreas Scherz, Harald Sinn, Ulf Zastrau   +8 more
doaj   +1 more source

Ultrafast X-ray Photochemistry at European XFEL: Capabilities of the Femtosecond X-ray Experiments (FXE) Instrument

Applied Sciences, 2020
Time-resolved X-ray methods are widely used for monitoring transient intermediates over the course of photochemical reactions. Ultrafast X-ray absorption and emission spectroscopies as well as elastic X-ray scattering deliver detailed electronic and ...
Dmitry Khakhulin, Florian Otte, Mykola Biednov, Christina Bömer, Tae-Kyu Choi, Michael Diez, Andreas Galler, Yifeng Jiang, Katharina Kubicek, Frederico Alves Lima, Angel Rodriguez-Fernandez, Peter Zalden, Wojciech Gawelda, Christian Bressler   +13 more
doaj   +1 more source